Hello, These symptoms are similar to mine. I have noticed (especially while driving) that I feel heaviness in the head. Even feel like i'm about to black out. Then feel a little better when I stop the truck and get out and walk. I was thinking it was a lack of water. I've guzzled water till its pouring out of my ears. Something is up. I've had headaches off and on for along time. Have chronic fatigue. Hard to concentrate at times. I don't feel much neck pain like some of you have. I've taken multi vitamins religeously. I can't go on like this obviously. Cant even drive 2 blocks without feeling like my head is too heavy to hold up. Then the fogginess. Oh yea, also have blurred vision at times. Going to the doctor for stuff like this has like a 5% chance of satisfation or REAL answers. Doctors get paid huge money and it just seems they guess at people's diagnosis. I dunno. I'll try massaging my neck before bed. Thank you